Call me daffy!

[gstopp at fibermux.com]

     >
     >but does anyone have a circuit that can produce a gate and trigger 
     >based on pressing an SPST switch?
     >
     
     Should be e-z, maybe vary a little depending on the surrounding 
     electronics. What exactly are the requirements? Gate high at +5 when 
     button pressed, trigger as a +5 pulse with a width of say ten 
     milliseconds on the rising edge of the gate... maybe +10 for gate and 
     trigger levels? Is V+ okay, like +12 or +15? What about drive 
     capability - is a buffer needed to drive a 1K output impedance? Does 
     the gate need to be de-bounced to eliminate switch contact glitches? 
     Is the gate delay to be a on a separate delayed gate output? Does that 
     need its own trigger as well? What is the gate delay time range?
     
     I like questions like these, they're like little puzzles to break up 
     the monotony.:)
     
     - Gene
     gstopp at fibermux.com
     
     


______________________________ Reply Separator _________________________________
Subject: Call me daffy!
Author:  Bob Zimmer <bzimmer at voicenet.com> at ccrelayout
Date:    11/1/96 9:54 AM
     
I'm working on building an external controller with dual joysticks.  What it 
will do is provide quadrature? (X-Y independent) 1V/Octave and scaleable CV 
outputs along with a gate/trigger based on the SPST switch on the stick.  It 
will also have a gate delay circuit.  I'm planning to use it to provide 
filter CV from one axis and resonance from the other axis.
     
I have most of it working, but does anyone have a circuit that can produce a 
gate and trigger based on pressing an SPST switch?